The purpose of a neutral grounding resistor is to limit the ground fault current to a safe level so that all the electrical equipment in the power system is protected. The resistor should be the only current path between the neutral of power transformer or power generators and ground. 

Protection degree of enclosure: from IP00-i.e. no enclosure to IP55, standard solution IP23

Enclosure finish: our standard is mild galvanized, but different stainless steel grades are available; Painting in the desired RAL color is also an option

Continuous current rating: it may affect significantly the performance of the resistor, especially when high IP degrees are required.

Environment and elevation: we design resistors for the harshest industrial or natural settings

Auxiliary components: during our many years of operation we have selected a number of trusted suppliers for a wide choice of components, such as Current Transformers, Switches, Disconnectors, etc.